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Asparagus
Asparagus (Asparagus officinalis) or garden asparagus is a perennial flowering plant species in the genus Asparagus native to Eurasia. Widely cultivated as a vegetable crop, its young shoots are used as a spring vegetable.
Asparagus is an herbaceous, perennial plant growing typically to 100–150 centimetres (3–5 feet) tall, with stout stems with much-branched, feathery foliage. It has been known to grow as long as 3.5 metres (11 ft). The 'leaves' are needle-like cladodes (modified stems) in the axils of scale leaves; they are 6–32 millimetres (1⁄4–1+1⁄4 inches) long and 1 mm (1⁄32 in) broad, and clustered in fours, up to 15, together, in a rose-like shape. The root system, often referred to as a 'crown', is adventitious; the root type is fasciculated.
The flowers are bell-shaped, greenish-white to yellowish, 4.5–6.5 mm (3⁄16–1⁄4 in) long, with six tepals partially fused together at the base; they are produced singly or in clusters of two or three in the junctions of the branchlets. It is usually dioecious, with male and female flowers on separate plants, but sometimes hermaphrodite flowers are found. The fruit is a small red berry 6–10 mm (1⁄4–13⁄32 in) in diameter, which is toxic to humans.
Asparagus grown natively to the western coasts of Europe (from northern Spain to northwest Germany, north Ireland, and Great Britain) are treated as A. officinalis subsp. prostratus (Dumort.) Corb., distinguished by its low-growing, often prostrate stems growing to only 30–70 cm (12–28 in) high, and shorter cladodes 2–18 mm (3⁄32–23⁄32 in) long. Some authors treat it as a distinct species, A. prostratus Dumort.
The English word asparagus derives from classical Latin but the plant was once known in English as sperage, from the Medieval Latin sparagus. This term itself derives from the Ancient Greek: ἀσπάραγος - aspáragos, a variant of Ancient Greek: ἀσφάραγος - aspháragos. The Greek terms are of uncertain provenance; the former form admits the possibility of a Proto-Indo-European root meaning "to jerk, scatter," directly or via a Persian descendant meaning "twig, branch"; but the Ancient Greek word itself, meaning "gully, chasm," seems to be of Pre-Greek origin instead.[citation needed]
Asparagus was corrupted by folk etymology in some places to "sparrow grass"; indeed, John Walker wrote in 1791 that "Sparrowgrass is so general that asparagus has an air of stiffness and pedantry". The name 'sparrow grass' was still in common use in rural East Anglia, England well into the twentieth century.
Asparagus was once classified in the lily family, as were the related Allium species onions and garlic. Genetic research currently places lilies, Allium, and asparagus in three separate families: the Liliaceae, Amaryllidaceae, and Asparagaceae, respectively. The latter two are part of the order Asparagales.[citation needed]
Asparagus populations grown natively to the western coasts of Europe are treated as the subspecies group of prostratus (Dumort.) Corb..
Asparagus
Asparagus (Asparagus officinalis) or garden asparagus is a perennial flowering plant species in the genus Asparagus native to Eurasia. Widely cultivated as a vegetable crop, its young shoots are used as a spring vegetable.
Asparagus is an herbaceous, perennial plant growing typically to 100–150 centimetres (3–5 feet) tall, with stout stems with much-branched, feathery foliage. It has been known to grow as long as 3.5 metres (11 ft). The 'leaves' are needle-like cladodes (modified stems) in the axils of scale leaves; they are 6–32 millimetres (1⁄4–1+1⁄4 inches) long and 1 mm (1⁄32 in) broad, and clustered in fours, up to 15, together, in a rose-like shape. The root system, often referred to as a 'crown', is adventitious; the root type is fasciculated.
The flowers are bell-shaped, greenish-white to yellowish, 4.5–6.5 mm (3⁄16–1⁄4 in) long, with six tepals partially fused together at the base; they are produced singly or in clusters of two or three in the junctions of the branchlets. It is usually dioecious, with male and female flowers on separate plants, but sometimes hermaphrodite flowers are found. The fruit is a small red berry 6–10 mm (1⁄4–13⁄32 in) in diameter, which is toxic to humans.
Asparagus grown natively to the western coasts of Europe (from northern Spain to northwest Germany, north Ireland, and Great Britain) are treated as A. officinalis subsp. prostratus (Dumort.) Corb., distinguished by its low-growing, often prostrate stems growing to only 30–70 cm (12–28 in) high, and shorter cladodes 2–18 mm (3⁄32–23⁄32 in) long. Some authors treat it as a distinct species, A. prostratus Dumort.
The English word asparagus derives from classical Latin but the plant was once known in English as sperage, from the Medieval Latin sparagus. This term itself derives from the Ancient Greek: ἀσπάραγος - aspáragos, a variant of Ancient Greek: ἀσφάραγος - aspháragos. The Greek terms are of uncertain provenance; the former form admits the possibility of a Proto-Indo-European root meaning "to jerk, scatter," directly or via a Persian descendant meaning "twig, branch"; but the Ancient Greek word itself, meaning "gully, chasm," seems to be of Pre-Greek origin instead.[citation needed]
Asparagus was corrupted by folk etymology in some places to "sparrow grass"; indeed, John Walker wrote in 1791 that "Sparrowgrass is so general that asparagus has an air of stiffness and pedantry". The name 'sparrow grass' was still in common use in rural East Anglia, England well into the twentieth century.
Asparagus was once classified in the lily family, as were the related Allium species onions and garlic. Genetic research currently places lilies, Allium, and asparagus in three separate families: the Liliaceae, Amaryllidaceae, and Asparagaceae, respectively. The latter two are part of the order Asparagales.[citation needed]
Asparagus populations grown natively to the western coasts of Europe are treated as the subspecies group of prostratus (Dumort.) Corb..